Question

(1) An organic compound has the molecular formula C12H13NO3 Identify the
compound using the spectroscopic data given below:
7.
UV: 254 nm
IR : 3338, 1715, 1592 cm
TH NMR : 12.7/s). 8.42(d, J = 6.1 Hz), 7.45 - 7.25(m. 5H).
6.66(dd. J = 15.9. 1.2 Hz). 6.30(dd, J = 15.9, 6.7 Hz), 1.90(s, 3H)
13C NMR : 171.9. 169.0 135.9, 131.7, 128.7. 127.9, 126.3, 124.6, 54.4
Mass : m/e 219. 175, 132, 131, 103, 77,43​

Answer 1

Answer:

Molecular Formula

Mass spectrometry is used to determine the molecular mass of an organic compound. A small sample of the compound is vaporised under very low pressure and high temperature and the vapour is irradiated with a beam of high energy electrons (4000 � 6000 kJ mol-1).